Material defect

For the Illinois Residential Real Property Disclosure Report, a material defect is a condition that would substantially adversely affect the home's value or significantly impair future occupants' health or safety, unless the seller reasonably believes the condition has been corrected. The definition focuses on consequence, not merely repair price, age, appearance, or whether the condition appears on a buyer's wish list.

No. A defect is any deficiency or malfunction. It becomes material under the statutory form when it crosses the substantial-value or significant health-or-safety threshold. A loose cabinet pull may be defective without being material. Repeated foundation movement, unsafe electrical work, contaminated water, chronic flooding, or a failed structural component may cross the threshold depending on reliable evidence and facts.

No. Material describes seriousness; latent describes discoverability. A major visible foundation crack may be material but patent. Concealed structural damage may be material and latent. A hidden cosmetic scratch may be latent but not material. The Illinois seller report focuses on known material defects, while the seller-licensee customer rule specifically adds latency and inability to discover through reasonably diligent inspection.

A covered seller must disclose material defects actually known and complete every current statutory report item. The form covers matters such as flooding, foundation, roof, walls, windows, doors, floors, electrical, plumbing, wells, drinking water, heating and cooling, fireplace, sewage disposal, radon, environmental substances, boundary or easement issues, and other listed conditions. Exact current wording controls.

No. The Act says the seller need not make a specific investigation or inquiry to complete the report. That rule does not permit a false answer or concealment. Actual knowledge can come from observation, recurring symptoms, insurance claims, repair records, contractor advice, prior reports, tenant complaints, municipal notices, or other reliable information.

Section 25 can protect an omission based on a reasonable belief that the material defect or other matter had been corrected. The belief must be reasonable in light of what the seller knows. A qualified repair, successful follow-up testing, and no recurrence support it. Repeated symptoms, temporary patching, contrary expert advice, or a new failure can defeat it and require updated disclosure.

Yes, the parties may negotiate an as-is sale subject to disclosed defects. As is generally addresses who bears repair risk; it does not authorize concealment, erase the statutory report, eliminate a pre-closing supplement, cancel the broker's independent disclosure duty, or protect fraud. A buyer may inspect, price the risk, seek a credit, request repair, proceed, or use a lawful termination right.

A licensee engaged by a seller must timely disclose to prospective buyer customers actually known latent material adverse facts about the property's physical condition that a reasonably diligent buyer inspection could not discover. Material physical-condition information is not protected as a client secret. The agent should disclose the known condition without pretending to diagnose its engineering, environmental, or repair implications.

Before closing, if the seller becomes aware that a prior report or supplement contains an error, inaccuracy, or omission, the seller must deliver a written supplement. The buyer's termination right depends on Section 40: prior seller knowledge, whether the defect can be repaired before closing, and whether the seller agrees in writing within five business days after supplemental delivery to repair a repairable defect.

Not automatically. Disclosure and repair are different. The parties can negotiate an as-is sale, repair, credit, price adjustment, escrow, warranty, inspection contingency, or termination. Under the supplemental-disclosure remedy, failure to agree in writing within five business days to repair a repairable material defect can contribute to the statutory right to terminate, but the Act does not convert every disclosed defect into a universal repair command.

No. The practice questions are original. The PSI Illinois outline, Residential Real Property Disclosure Act, and Real Estate License Act were checked through August 1, 2026. This is exam education, not legal, engineering, inspection, environmental, repair, appraisal, insurance, contract, or transaction advice. A live defect requires the current report, actual-knowledge record, specialist findings, repair proof, recurrence history, supplement, delivery receipt, contract rights, sponsor review, and qualified Illinois counsel where liability or termination is disputed.